Acetylene-gas burner.



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E'. J. lDOLAN. ACETYLENE GAS BURNER. (Application led Nov. 4, 1899. Renewed Dec. 26, 1900.)

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EDWARD J. DOLAN, OF PHILADELPHIA, PENNSYLVANIA.

ACETYLENEuGAS BURNER.

SPECIFICATION forming part of Letters Patent No. 678,553, dated July 16, 1901.` Application iiled November 4, 1899. Renewed December 26, 1900. Serial No. 41,094A (No model.)

To all whom t may concern.-

Be it known that I, EDWARD J. DOLAN, a

-citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Acetylene- Gas Burners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form afpart of this specication.

This invention relates to new and useful improvements in acetylene-gas burners, and has for its object the production of a smokeless flat flame and is adapted particularly to the type of burner known as the Bray, in which two jets of gas are directed against each other and meet on or slightly above the seating-surface, an extra amount of air being mixed with the gas before combustion takes place, whereby dames of large size may be produced without the deposition of carbon on the tip,which is caused byimperfect combustion and which is a common occurrence in acetylene-burners.

The purpose of the present invention is to generally improve upon the constructions of burners of this type and to overcome the difficulties before cited, and in carrying out my invention I provide a skeleton or open liame seating portion having an oblique bevel at its top, which at the same time will provide for the introduction of air before ignition takes place, particular attention being called to the tapering of the combustion-point of the flame-seating portion. This feature I have found from experiment to be of great advantage in aiding the combustion of the dame.

The advantages of the present invention over the burners commonly in use consist of the preventing of any carbon deposit on the combustion-surface, the impossibility of get= ting the flame out of shape or alinement, and simplifying and cheapening the cost of construction of the burner.

The construction of my improvement in gas-burners forming the subject-matter of the present application differs radically from that embodied in Letters Patent No. 597,057,

which were granted to me under date of January ll, 1898, in which patent a fiat-llame burner with a flat seating-cap is provided, which cap has a series of air-holes in same, whereby the air which passes through said holes to aid the combustion of the gas becomes heated before reaching,r the iiame by reason of its passing inside the seating-cap, whereas in the present invention the air is taken directly from the atmosphere, thereby getting it mixed with the gas in a comparatively oool state.

My invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this application, and in which drawings-- Figure l is a side elevation of a skeleton seating portion attached to the ordinary Bray tip. Fig. 2 is a central vertical section through the tip and flame-seating portion. Fig. 3 is a side elevation of a burner for full tiame, in which the jets of gas meet each other some distance above the gas-outlets. Fig. 4 is a sectional View centrally and vertically through Fig. 3, showing the points at which the jets of gas meet, thus admitting a sufficient quantity of air before combustion takes place,this form being particularly applicable to a large iiame.

Reference now being had to the details of the drawings by letter, A designates the burner, to the upper end of which is carried the tip portion B, having a beveled face C, terminating in a projection D. Oppositelydisposed tapering apertures E, at right angles or less to the face C, are formed in said piece B, and the upper pointed ends ofsaid apern tures may be coincident with each other, as in Fig. 2, or they may be spaced apart, as shown in Fig. 4, whereby the jets of gas will meet and impinge upon each other above the surface through which the upper ends of said apertures pass. On the upper surface of the tip B is the semicircular outlined skeleton flame-seating portion F, having oppiositelyh disposed beveled surfaces G G. Underneath the skeleton portion having the beveled surfaces and the upper surface H is a space K, through which the air passes to mix with the gas before the combustion takes place. Opening into this space and vertically disposed IOO midway between the beveled surfaces Gr is a slit L, in which the combustion of the gas takes place.

It will be noted that accordingly as the apertures E are inclined with relation to each other, so that their upper ends are practically coincident with each other or spaced apart, a lesser or greater amount of air is vallowed to mix with the gas before it reaches the cornbustion-point, thus making the invention applicable to a small or large flame.

It will be understood that any Well-known material may be used in the construction of the skeleton seating-surface; butIhave found ordinary steel wire or lava to be preferable.

Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is*

l. An acetylene-gas burner, in which a slotted skeleton iiarne-seatin g portion is provided, which slot is in a plane coincident with the irnpinging surface of two oppositely-disposed jets of gas.

2. An acetylene-gas burner and tip therefor, a slotted skeleton flame-seating portion over the latter, oppositely-disposed and in clined tapering apertures opening through the upper surface of the tip, as set forth.

3. An acetylene-gas burner and tip there-l for, a slotted skeleton Haine-seating portion over the latter, oppositely-disposed and inclined apertures in the tip, said apertures being in a plane at right angles to the slotted Haine-seating portion, as set forth.

4. In combination with the burner, the tip having inclined and oppositely-disposed apf ertures formed therein, which open through the iat upper surface of the tip, the beveled flame-seating portion over the tip, and serniL circular in outline and slotted longitudinally, a suitable space intervening between the bridge of said seating portion and the upper surface of the tip, as set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

EDWARD J. DOLAN.

Witnesses:

EDW. C. NAPHEYS, E. V. SUDELL. 

